Drill-brace



W. L. LYNCHZ 'omu BRACE.

APPLICATION FILED SEPT. 19, I918.

Patented Dec. 2, 1919.

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WILLIAM LESLIE LYNCH, OF BROOKLYN, NEW YORK, ASSIGNOR T TIMOTHY H. LYNCH, 0F BROOKLYN, NEW YORK.

DRILL-BRACE.

azarus.

Specification of Letters Patent.

Patented Dec. 2, 1919.

; Application filed September 19, 1918. Serial No. 254,729.

To all whom v'may concern:

Be it known that I, l/VILLIAM LESLIE LYNCH, a citizen of the United States, residing at Brooklyn, in the county of Kings, State of New York, have invented certain new and useful Improvements in Drill- Braces, of which the following is a full,

clear, and exact specification.

This invention relates" to drill braces or rests, and has for its object to provide a device of this kind adapted to be used in a multiplicity of places or positions, whereby a single brace or rest will answer where several difierent ones have heretofore been A special object is to provide a drill brace capable of use for drilling any one or allot the three faces of a channel bar without changing the position of said bar. Another object is to allow for drilling a plurality of holes in an are without changing the barengaging portion of the brace with respect to the bar. Other objects will appear asthe description proceeds;

The invention will be first hereinafter described in connection with the accompanying drawings, which constitute part of this specification, and then more specifically defined in the claims at the end of the description.

In the accompanying drawings, wherein similar reference characters are used to designate corresponding parts throughout the several views Figure 1 is aside elevation of a drill brace constructed substantially in accordance with this invention applied to an angle or channel 1 bar for holding a drillv in position to work on one wing of said bar.

Fig. 2 is a similar view of the brace applied to the angle or channel bar for holding the drill in position to work on the other wing of the bar.

Fig. 3 is a similar view of the brace applied to the channel bar for holding the drill in position to work on the base or body por- Fig. 4 is a section on the line IVIV of Fig. 3, and

Figs. 5 and 6 are detailed perspective views of modified forms of drill braces.

The preferred form of brace, as illustrated in Figs. 1 to 4:, inclusive, comprises a piece of rigid metal of any suitable width and thickness having a shank portion 1 and an angularly bent and twisted arm or abutment portion 2 disposed at right angles to the longitudinal axis of the shank portlon and to one side of said shank. The free end of the shank is bent at right angles and rebent to form the hook 3, and to the outer face of said hook there is swiveled a supplemental hook 4: by means of the'rivet 5.

The supplemental hook 4 preferably disposed to face in the opposite direction from the hook 3, asbest illustrated in Fig. 4., so that the hook 4 may be engaged with one wing 6 of a channel bar 7, as illustrated in Fig. 1, when the drill 70 is to be used on that wing, while the hook 3 may be engaged with the other wing 8 of said bar, as shown in Fig. 2, when it is to be drilled. When the hook a is in engagement with the bar, the shank and arm of the brace may be turned on the rivet 5 so as to permit the drill to be adjusted for drilling holes at difierent points in the wing of the bar, either in an are or otherwise, without changing the position of said hook 4 with respect to the bar.

Another supplemental hook, hereinafter termed the longitudinal hook as distinguished from the transverse hooks 3 and 4, is'illustrated at 9 swiveled to the side of the shank 1 of the brace by means of a pivot pin 10. Said longitudinal hook 9 may be engaged with either-one of the wings of the channel bar, as illustrated in Figs. 3 and at, for supporting the drill in position to work on the base or body portion 11 of the bar. The hook 9 may be adjusted at different points along the shank of the brace to adapt it for use with various sizes of drills and channel bars. As illustrated in Figs. 1, 2, 3 and 4 of the drawings, this adjustment may be accomplished by engaging the pivot pin 10 with any one of a plurality of holes 12 in the shank, or with an elongated slot 13 in said shank. The pivot pin is retained in the selected hole or at the desired point along the slot 13 by means of a nut 14 screwed on the threaded outer end portion of said pin.

It will be observed that the preferred form of brace which has been described is of the universal type inasmuch as it is adapted to be used in a number of difierent places or positions. In Figs. 5 and 6 simpler forms of braces are illustrated for use on one wing of an angle or channel bar. The shank 15 of the brace shown in Fig. 5 has the angularly bent abutment arm 16 at one end and at the other end a short bent portion 17 to which a hook 123 is swivele'd, so that'the shank and abutment arm may be turned. on said swivel-pin 19 for boring holes at different points without changing the position of said hook. In Fig. 6 the hook 20 is integral with the shank 21,-as is also the abutment arm 22, this form of braee beingthe simplest but not having the swivel adjust nent of the other forms. 7

'Having this described my invention, What I claim as new and desire to secure by Latters Patent or the United States is z e drill braoe having a shank, an abutinent arln arranged at an angle thereto at one end of the shank, an angularly bent portion at. the other end of the shank; and a U-shaped hook having one of' its arms arranged flat against and swiveled to said angularly bent portion so as to extend transhook formed on the other end of the shank and extending transversely thereof, and a separate U-shaped hook having one of its arms arranged fiat against andswiveled to the outer arm of the integral hook so toalso extend transversely of the shank.

In testimony whereof I have'signed my name to this speoifio ation.

WILLIAM LESLIE LYNCH.

One end of the shank, an integral U-shaped 

